Accession Number : ADA292513

Title :   Computer Simulation Study of High T(c) Superconductor Structure.

Descriptive Note : Final technical rept. 1 Jul 91-31 Dec 94,

Corporate Author : SOUTHERN UNIV BATON ROUGE LA DEPT OF PHYSICS

Personal Author(s) : Fan, J. D.

PDF Url : ADA292513

Report Date : FEB 1995

Pagination or Media Count : 24

Abstract : The project funded by AFOSR under the grant 91-0337 for the past three and a half of years has reached a brilliant achievement in understanding the mechanism of high-temperature superconductivity (HTSC). A basic theory describing the mechanism and origin of HTSC has been established. It is not completely finished, but the outline and kernel of the theory have been done. This is a revolutionary breakthrough in seeking the mechanism of HTSC that is entirely different from the currently prevailing theories and models. The main point of this theory lies in the mechanism of superconductivity in high-temperature superconductors (HTSCts) or the origin of the attractive interaction between two electrons in a Cooper pair. It is said in the theory developed in the present project that the origin of attraction between two electrons in HTSC's stems from the Coulomb-type interaction due to the electron correlation effects enhanced by the layered spatial structure. In other words, the superconductivity in HTSC's is induced by the electron-electron correlations. In contrast to the viewpoint of electron-phonon interaction mechanism of superconductivity, stemming from the BCS theory, the new viewpoint is that the electron-electron interaction mediated by electron-hole excitations governs behaviors of HTSC. (KAR) P. 2

Descriptors :   *COMPUTERIZED SIMULATION, *SUPERCONDUCTORS, *SUPERCONDUCTIVITY, INTERACTIONS, LAYERS, HIGH TEMPERATURE, THEORY, ELECTRONS, CORRELATION, PHONONS.

Subject Categories : Electricity and Magnetism
      Computer Programming and Software

Distribution Statement : APPROVED FOR PUBLIC RELEASE